# Answer to Question #41348 in Mechanics | Relativity for promise

Question #41348

The position of a particle along the x-axis depends on the time according to the equation according to the

at2−bT3

, where x is in metres and t in seconds. What are the dimensions of and units of a and b?

a. LT−2

,

m=s2

;

LT−3

,

m=s3

b. LT2

,

m=s−2

;

LT3

,

m=s−3

c. L−1T−2

,

m−1=s2

;

LT−3

,

m=s3

d. LT−2

,

m=s2

;

L−2T−3

,

m−2=s3

at2−bT3

, where x is in metres and t in seconds. What are the dimensions of and units of a and b?

a. LT−2

,

m=s2

;

LT−3

,

m=s3

b. LT2

,

m=s−2

;

LT3

,

m=s−3

c. L−1T−2

,

m−1=s2

;

LT−3

,

m=s3

d. LT−2

,

m=s2

;

L−2T−3

,

m−2=s3

Expert's answer

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